Move consolidateDiaSourceTable to step6

This makes step5 a clear per-tract step and
step6 a per-visit step.

pipelines/imsim/DRP.yaml

@@ -109,23 +109,26 @@ subsets:
             detector-level quanta are desired.
     step5:
         subset:
-        - consolidateDiaSourceTable
         - drpAssociation
         - drpDiaCalculation
         description: >
             Tasks that can be run together, but only after the 'step1', 'step2',
             'step3', and 'step4' subsets
 
-            These DIA aggregation steps include both a visit-level aggregation
-            step consolidateDiaSourceTable and tract-level aggregation steps
-            drpAssociation and drpDiaCalculation.
+            This step includes tract-level aggregation Tasks. These should be
+            run with explicit 'tract' constraints in the data query, otherwise
+            quanta will be created for jobs with only partial visit coverage.
+
+    step6:
+        subset:
+        - consolidateDiaSourceTable
+        description: >
+            Tasks that can be run together, but only after the 'step1', 'step2',
+            'step3', and 'step4' subsets
 
-            While processing DC2 test-med-1, running without tract or patch in
-            the data query is recommended. If processing many contiguous tracts
-            running with tract in the dataId will be unavoidable.
-            If run with tract or patch in the data query, drpAssociation and
-            drpDiaCalculation will be complete, but the outputs of
-            consolidateDiaSourceTable will not contain complete visits.
+            This step includes visit-level aggregation tasks. Running without
+            tract or patch in the data query is recommended, otherwise the
+            outputs of consolidateDiaSourceTable will not contain complete visits.
 
             This subset is separate from step4 to signal to operators to pause
             to assess unexpected image differencing failures before these